Trump Threatens to End American Aid: ‘We’re Watching Those Votes’ at the U.N.

WASHINGTON — President Trump issued a threat on Wednesday to cut off American aid to any country that votes for a resolution at the United Nations condemning his recent decision to recognize Jerusalem as the capital of Israel.

Mr. Trump’s statement, delivered at a cabinet meeting in which he exulted over the passage of a tax overhaul, followed a letter to General Assembly members from the American ambassador to the United Nations, Nikki R. Haley, in which she warned that the United States would take note of countries that voted in favor of the measure.

“All of these nations that take our money and then they vote against us at the Security Council or they vote against us, potentially, at the Assembly, they take hundreds of millions of dollars and even billions of dollars and then they vote against us,” Mr. Trump said.

“Well, we’re watching those votes,” he added. “Let them vote against us; we’ll save a lot. We don’t care.”

It is difficult to see how Mr. Trump can make good on that threat because it could involve cutting off financial assistance to the country’s most strategic allies in the Middle East. Some of those programs, like Egypt’s, are congressionally mandated. While the president can hold up aid unilaterally as a form of leverage, canceling it would require new legislation.

Still, the bitter confrontation at the United Nations shows the lingering repercussions of Mr. Trump’s decision to recognize Jerusalem, which defied world opinion and upended decades of American policy. While the decision has not unleashed the violence in the Arab capitals that some had feared, it has left the United States diplomatically isolated.

The General Assembly is scheduled to vote Thursday on a resolution that would express “deep regret at recent decisions concerning the status of Jerusalem,” according to a draft text. It would urge other countries not to move their embassies there from Tel Aviv.

Mr. Trump announced this month that the United States would relocate its embassy to Jerusalem, though State Department officials said a move was several years away because of the logistics of constructing a new embassy complex.

In Ms. Haley’s letter, a copy of which was seen by The New York Times, she said, “As you consider your vote, I want you to know that the president and U.S. take this vote personally.”

“To be clear,” she wrote, “we are not asking that other countries move their embassies to Jerusalem, though we think it would be appropriate. We are simply asking that you acknowledge the historical friendship, partnership and support we have extended and respect our decision about our own embassy.”

On Monday, the United States used a rare veto to block a resolution in the Security Council calling for the administration to reverse its decision on Jerusalem. The vote on the resolution, which was drafted by Egypt, was 14 to 1, suggesting there could be a similarly wide margin against the United States in the 193-member General Assembly.

Canada, the Czech Republic and Hungary might abstain from the vote, according to diplomats. Days after the United States, the Czech Republic recognized West Jerusalem as the Israeli capital, though it said it would not move its embassy before negotiating with countries in the region.

Egypt received $77.4 billion in foreign aid from the United States from 1948 to 2016, according to the Congressional Research Service, including about $1.3 billion in annual military aid.

Yemen and Turkey are sponsoring the General Assembly resolution, which underlines the problem Mr. Trump would face in retaliating for an anti-American vote. Yemen, which is torn by civil war, receives humanitarian aid from the United States, while Turkey is a North Atlantic Treaty Organization ally.

On Wednesday, Mr. Trump struck a familiar tone, declaring that “people are tired of the United States — people that live here, our great citizens that love this country — they’re tired of this country being taken advantage of, and we’re not going to be taken advantage of any longer.”

Derek H. Chollet, who served in the Obama administration, said: “This is an empty threat. Some of the countries Trump professes to be most admiring of would be caught in the cross-hairs of this.”

President Barack Obama withheld Harpoon missiles and F-16 fighter jets from Egypt in 2013 after the country’s army ousted President Mohamed Morsi. But Mr. Obama did not try to kill the overall aid program, even though some officials argued that the army’s action constituted a coup, grounds for cutting off the aid. In 2015, he reinstated the aid.

“The idea that you can use foreign assistance as a lever to influence the behavior of countries is not a not new one,” Mr. Chollet said. “But this is bluster that other countries will see right through.”

It was also not the first time that Ms. Haley has used this language at the United Nations. Soon after taking her post, she said, “You’re going to see a change in the way we do business.” The United States, she said, would back its allies and expected their backing in return. “For those who don’t have our back,” she added, “we’re taking names.”

At the cabinet meeting on Wednesday, Mr. Trump praised Ms. Haley, saying, “That was the right message that you and I agreed to be sent yesterday.”

But the deepening dispute over Jerusalem casts an even longer shadow over Mr. Trump’s hopes to broker a peace accord between Israel and the Palestinians. Vice President Mike Pence postponed a trip to Israel this week that some officials hoped would be a victory lap for the administration.

White House officials said Mr. Pence stayed in Washington as an insurance policy because of the vote in the Senate on the tax bill. But the trip was shaping up as divisive: the vice president was not going to meet with Palestinian leaders, who are still seething over Mr. Trump’s decision on Jerusalem, which they regard as the capital of a future Palestinian state.

“They thought they were taking Jerusalem off the table,” said Aaron David Miller, a longtime Middle East negotiator, said of the Trump administration. “They now have guaranteed it will be there for breakfast, lunch and dinner.”

Rick Gladstone and Michael Schwirtz contributed reporting from the United Nations.

A version of this article appears in print on , on Page A1 of the New York edition with the headline: ‘We’ll Save a Lot’: Trump Warns He’ll Cut Aid if Crossed at U.N.. Order Reprints | Today’s Paper | Subscribe